Improvement in draft-equalizers



UNITED STATES PATENT OFFICE.

JOHN P. BEOKENBAUGH, OF SPRINGFIELD, ILLINOIS.

IMPRo'vEMENT IN DRAFT-EQUALIZERS.

vSpecification forming part of *Letters Patent No, 144,052, datedOctober 22,1873; application filed i May 26, w73.

To all whom it may concern: V

Be it known that I, JOHN l". BEcKENBAUe-H, of Springfield, in the countyof Sangainon and State of Illinois, have invented awnew and valuableImprovement in Three-Horse Equalizers; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawingsmaking a part of this speciiication, and to the letters and gures ofreference marked thereon.

Figure l of the drawings is a representation of a front view of mydevice. Fig. 2 is a top View of the same.

This invention has relation to three-horse equalizing attachments; andit consists in the construction and novel arrangement of theangle-plates to which the pulley -journals are fixed, and thepartition-plate between each set of middle pulleys, one above the other,in connection with the whiflletree and attachmentchains, as hereinaftermore fully described.

In the accompanying drawings, the letter A designates the whiflietree,tapered on each side toward each end, so that it will be thickest in itsmiddle portion. The front face of the whiffletree is plane, preferably,so that the angleplates will not require to be extended therefrom to anyconsiderable distance to bring the pulleys in line with each other.dicate the angle-plates, which are attached, by their rear arms a, tothe upper and lower surfaces vof the whiffletree, there being four ofthese plates for each surface, arranged at equal distances aparthorizontally. The corresponding plates B, at each end of thewhiffletree, constitute a support for the end -pulleys O, the inner armof each plate being slightly twisted or bent to correspond with thetaper of the tree, and to bring those portions of the plates which arein contact with the pulley parallel with each other, so that the chainwill not be liable to be caught between the pulley and plate. Verticalpivotpins e connect these plates. The corresponding plates B', in themiddle portion of the whiftletree, where it is thickest, are far enoughapart for the reception of two pulleys, D, one above the other, on thesame axial pin e, but separated from each other by a division-plate,

l E, secured by inserting its rear end into a horizontal recess in themiddle line of the plane front wall of the whiiletree. F indicates theattachment-chains, by which the tracetugs are connected withthewhifiietree. These attachment-chains are three in number, and are roveabout the pulleys in the following manner, the chains and horses being,respectively, numbered l, 2, and 3 from the left: Chain No. 1 is passedaround the end pulley C at the left and one of the next inner set ofpulleys D. Chain No. 2 is carried around the other pulley D of this setand the corresponding pulley D of the next set. Chain No. 3 is passedaround the other pulley D of this set and the endpulley O at the right.In gearing up, horselvvNo. l is attached, by the draft-tugs, to theleftjends of chains Nos. l and 2; horse No. 2 tothe right and left ends,respectively, ofchains Nos. l and 3 and horse No. 3 to the right ends ofchains Nos.. 2 and 3.

The angleplates, being attached by the oblique branches to thewhiflietree, are not apt to become loose by the lateral pulling of thehorses, as, whether they pull to the right or left, the direction of thestrain Will be mainly in line with the opposite branch of the plate.

The partition-plate E extends from the whifiletree outward, and isperforated for the passage of the pulley journals. It is not apt to getout of place or obstruct in any way the working of the chains.

I am aware a three-horse equalizer with single end pulleys, sets ofsuperposed inner pulleys, and attachment-chains, are not new, andtherefore I do not claim such invention, broadly; `but What I claim asnew, and desire to secure by Letters Patent, is

In a three-horse equalizer, the angle-plates B B', having obliquebranches attached to the whifdetree in the direction of lateral strainon each side, the chain-pulleys and the journalpins c passing throughthe angular portion of the plates B B', with or without the divisionplates E, said part being constructed, coinbined, and arranged asspecified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses. t

JOHN P. BECKENBAUGH.

Witnesses:

W. J. CONKLING, F. S. MATEER.

